Existence and Uniqueness Criteria for Fuzzy Nabla Dynamic Equations on Time Scales

Many real-world phenomenons are imprecise vague and concrete. To model these real-world problems have two consequences i.e. one is to representthe real problem in the precise form and the other is due to more complexity in understanding the real-world problem. So to specify these types of phenomena fuzzy sets were developed. Traditionally dynamic equations on time scales were developed by using the delta derivative of a function so far. Later using the concept of backward jump operator in the definition of time scales and by using fuzzy concept initiated fuzzy nabla dynamic equations on time scales.